2 verses have
Rabbukum
in Edition English Transliteration / Ash-Shu'araa (The Poets)

26:26Qaala Rabbukum wa Rabbu aabaaa'ikumul awwaleen

26:166Wa tazaroona maa khalaqa lakum Rabbukum min azwaajikum; bal antum qawmun 'aadoon